This is from the release notes from DJI...
"What’s New
• Optimized GEO Zone management.
• Optimized aircraft performance to improve stability during flight.
• Fixed an issue that occasionally caused the camera to restart during video recording."
Considering DJI's track record of questionable firmware upgrades including poor documentation, failures during upgrading and lack of good support when it fails, this for me all falls under the category of "if it's not broken, then don't fix it!"
1. I don't want any more GEO Zone management where none should exist.
2. My drone performance and stability is just fine during flight.
3. My camera never restarted during video recording.
I see no must have upgrades or new intelligent flight modes, so my advice to those considering this upgrade is to ask yourself if you have had any of the problems this upgrade perports to fix, and upgrade or not accordingly.